666 Broadway Condominium Association (666 Broadway)
Office in New York City, NY · 666 Broadway · 10012
At a glance
666 Broadway Condominium Association (666 Broadway) is a 111,415-square-foot office building in New York City, New York, built in 1935. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 41.1 kBtu/ft² and 424 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 41.1 kBtu/ft² |
| Source EUI | 89.0 kBtu/ft² |
| GHG emissions | 424 tCO₂e |
| GHG intensity | 3.8 kgCO₂e/ft² |
| Electricity | 855,267 kWh |
| Natural gas | 16,598 therms |
| Water use | 1,240 kgal |
| Gross floor area | 111,415 sq ft |
| Source record | nyc:20413879:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 41.1 kBtu/ft² | 424 tCO₂e | |
| 2023 | 87 | +1 | 45.1 kBtu/ft² | 401 tCO₂e |
| 2022 | 86 | 49.2 kBtu/ft² | 354 tCO₂e |
Compliance context
Local Law 84 (LL84)
Under Local Law 97, buildings over 25,000 sq ft face carbon caps with fines of $268 per metric ton of CO₂e over the limit, phasing in from 2024.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 666 Broadway
- City
- New York City
- State
- New York
- ZIP
- 10012
- Coordinates
- 40.72707, -73.99538
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does 666 Broadway Condominium Association (666 Broadway) compare with other office buildings in New York City?
The latest disclosures cover 3,384 office buildings in New York City, out of 48,310 buildings citywide. Its site EUI of 41.1 kBtu/ft² is about 36% below the average of 64.5 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 3.8 kgCO₂e/ft² is about 34% below the group average of 5.8 kgCO₂e/ft².
At 111,415 sq ft, it is about half of the average floor area of 205,440 sq ft for those buildings. It was built in 1935, 5 years earlier than the group's average year built (1940). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has 666 Broadway Condominium Association (666 Broadway)'s energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for 666 Broadway Condominium Association (666 Broadway), covering report years 2022–2024. Its ENERGY STAR score went from 86 in 2022 to 87 in 2023 (+1 points). Site EUI moved from 49.2 kBtu/ft² (2022) to 41.1 kBtu/ft² (2024), a 16% decrease. Reported emissions went from 354 tCO₂e to 424 tCO₂e over the same span (up 20%).
What does a site EUI of 41.1 kBtu/ft² mean?
Site energy-use intensity (EUI) is the energy a building uses on site in a year divided by its floor area, in thousand Btu per square foot — lower is more efficient. 666 Broadway Condominium Association (666 Broadway)'s 41.1 kBtu/ft² across 111,415 sq ft works out to about 4.6 billion Btu (1,342 MWh-equivalent) in 2024. Its source EUI of 89.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 855,267 kWh of electricity, 16,598 therms of natural gas and 1,240 thousand gallons of water for the year.
Which law requires 666 Broadway Condominium Association (666 Broadway) to report its energy use?
666 Broadway Condominium Association (666 Broadway) reports under Local Law 84 (LL84), the legal basis of New York City's Energy and Water Data Disclosure program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record nyc:20413879:2024). Under Local Law 97, buildings over 25,000 sq ft face carbon caps with fines of $268 per metric ton of CO₂e over the limit, phasing in from 2024.
More office buildings in New York City
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- 430 West 15th Street (422 WEST 15 STREET)· 111,300 sq ft · score 85 (A)
- 18 East 41st Street· 111,236 sq ft
- 160 Fifth Avenue· 111,200 sq ft · score 25 (D)
- 378 Flushing Avenue· 111,166 sq ft · score 90 (A)
- Elijah Equities - 494 8th Ave· 111,000 sq ft · score 87 (A)
- Office buildings in New York City· 3,384 benchmarked
- All New York City benchmarked buildings· Local Law 84 (LL84)
- Most efficient large buildings in New York City
- Least efficient large buildings in New York City
- Biggest emitters in New York City
Frequently asked questions
What is 666 Broadway Condominium Association (666 Broadway)'s energy grade?
666 Broadway Condominium Association (666 Broadway) did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 41.1 kBtu/ft².
How much energy does 666 Broadway Condominium Association (666 Broadway) use?
Its 2024 site energy-use intensity was 41.1 kBtu/ft² (89.0 kBtu/ft² source) across 111,415 sq ft, including 855,267 kWh of electricity and 16,598 therms of natural gas.
What are 666 Broadway Condominium Association (666 Broadway)'s carbon emissions?
666 Broadway Condominium Association (666 Broadway) reported 424 tCO₂e of greenhouse-gas emissions (3.8 kgCO₂e/ft²) for 2024.
Where is 666 Broadway Condominium Association (666 Broadway)?
666 Broadway Condominium Association (666 Broadway) is in New York City, New York 10012. Its coordinates are 40.72707, -73.99538 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is 666 Broadway Condominium Association (666 Broadway) and when was it built?
666 Broadway Condominium Association (666 Broadway) has 111,415 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1935 as its year built. It is classed as office.
Is 666 Broadway Condominium Association (666 Broadway) covered by Local Law 84 (LL84)?
Yes — it appears in the 2024 Energy and Water Data Disclosure disclosure, which lists the buildings reporting under Local Law 84 (LL84).
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About this data
Source: Energy and Water Data Disclosure (Local Law 84 (LL84)), as published October 2, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “666 Broadway Condominium Association (666 Broadway), New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/666-broadway-condominium-association-666-broadway-6a2f5670 (data as of October 2, 2026).